US6076921A - Ink jet printer having an efficient substrate heating and supporting assembly - Google Patents
Ink jet printer having an efficient substrate heating and supporting assembly Download PDFInfo
- Publication number
- US6076921A US6076921A US09/032,922 US3292298A US6076921A US 6076921 A US6076921 A US 6076921A US 3292298 A US3292298 A US 3292298A US 6076921 A US6076921 A US 6076921A
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- front surface
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- 238000007639 printing Methods 0.000 claims abstract description 18
- 239000003973 paint Substances 0.000 claims abstract description 17
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/02—Platens
- B41J11/04—Roller platens
Definitions
- the present invention relates generally to liquid ink recording apparatus or ink jet printers, and more particularly relates to such a recording apparatus including an efficient sheet or substrate heating and supporting assembly.
- Liquid ink printers of the type frequently referred to either as continuous stream or as drop-on-demand have at least one printhead from which droplets of ink are directed towards a recording sheet.
- the ink is contained in a plurality of channels.
- power pulses cause the droplets of ink to be expelled as required from orifices or nozzles at the end of the channels.
- the power pulses are usually produced by formation and growth of vapor bubbles on heating elements or resistors, each located in a respective one of the channels, which are individually addressable to heat and vaporize ink in the channels.
- a vapor bubble grows in the associated channel and initially expels the ink therein from the channel orifice, thereby forming a droplet moving in a direction away from the channel orifice and towards the recording medium where, upon hitting the recording medium, a dot or spot of ink is deposited.
- the channel is refilled by capillary action, which, in turn, draws ink from a supply container of liquid ink. Operation of a thermal ink-jet printer is described in, for example, U.S. Pat. No. 4,849,774.
- the ink jet printhead may be incorporated into either a carriage type printer, a partial width array type printer, or a page-width type printer.
- the carriage type printer typically has a relatively small printhead containing the ink channels and nozzles.
- the printhead can be sealingly attached to a disposable ink supply cartridge and the combined printhead and cartridge assembly is attached to a carriage which is reciprocated to print one swath of information (equal to the length of a column of nozzles), at a time, on a supported, stationary recording medium, such as paper or a transparency.
- the page width printer includes a stationary printhead having a length sufficient to print across the width or length of a supported sheet of recording medium at a time.
- the supported recording medium is continually moved past the page width printhead in a direction substantially normal to the printhead length and at a constant or varying speed during the printing process.
- the substrate or sheet is supported and heated on a heating and supporting assembly that includes a platen and a heating device in order to dry the printed swath and prevent it from bleeding into an adjacent swath.
- the sheet supporting platen consists of a flat surface, or of a rotating hollow drum, that in either case, has a back surface, and a front surface that has an area which is large enough to support up to a legal size sheet, with border areas left over.
- heat is generated by a radiant heater or heating device mounted inside the hollow of the drum.
- the heating device is mounted to be stationary, while the drum rotates.
- the heat ordinarily is delivered to the back or inner surface of the drum uniformly, and conventionally is absorbed uniformly through the inner surface and into the wall of the drum. Conventionally too, the heat is then ordinarily emitted uniformly from the front or outer surface of the drum.
- heat removal from the front surface by substrates or sheets being supported on an area of the front surface depends significantly on the particular size of the sheet, and upon the frequency at which that particular size of sheet is being used or run through the printer.
- a thermal ink jet printer including a frame, a printhead mounted to the frame for printing ink images onto a heated and supported substrate, and an efficient substrate heating and supporting assembly mounted to the frame.
- the efficient substrate heating and supporting assembly includes a heating device, and a substrate supporting member having a front surface including a substrate supporting area for supporting substrates of various sizes one at a time.
- the efficient substrate heating and supporting assembly also includes a heat absorbing back surface facing the heating device.
- the heat absorbing back surface includes an increased heat absorbing area located opposite, and centered relative to the substrate supporting area on the front surface.
- the increased heat absorbing area relative to a rest of the back surface, has a heat absorbing surface treatment or coating thereon for increasing heat absorption thereinto from the heating device, thereby resulting advantageously in relatively nonuniform heat absorption into the back surface, and relatively more uniform, adequate and efficient substrate heating and drying temperatures on the front surface, when continuously running a most often used size of substrates.
- FIG. 1 illustrates a partial perspective view of an ink jet printing apparatus including and efficient sheet or substrate heating and supporting assembly in accordance with the present invention
- FIG. 2 is a perspective illustration of the efficient substrate heating and supporting assembly of FIG. 1;
- FIG. 3 is a graphical illustration of calculated circumferential surface temperature distributions measured end to end on the efficient substrate heating and supporting assembly of the present invention while running 8.5" ⁇ 11" substrates, as well as a superimposed and comparative similar but nonuniform distribution for a conventional, unmodified substrate heating and supporting assembly;
- FIG. 4 is a graphical illustration similar to that of FIG. 3, but for 8.5" ⁇ 14" substrates.
- the essential components of the printing apparatus 10 include a motor 11 connected to a suitable power supply (not shown) and arranged with an output shaft 14 parallel to an axis 15 of a rotatable cylindrical drum 16 of an efficient substrate heating and supporting assembly 60 of the present invention (to be described in detail below).
- a pulley 17 permits direct engagement of the output shaft 14, to a drive belt 18 for enabling the drum 16 to be continuously rotationally driven by the motor 11 in the direction of an arrow AA at a predetermined rotational speed.
- a recording medium such as a sheet of paper or a transparency 19 (letter size or legal size) is placed over an outer surface 20 of the drum 16, with its leading edge 21 attached to the surface 20.
- the sheet is attached to the drum 16 either by the application of a vacuum, using holes in the drum 16 (not shown), or by other means of holding the sheet to the drum, for example, electrostatic means.
- electrostatic means In operation, as the drum 16 with a sheet 19 attached thereto rotates, it moves the sheet 19 with it past a printhead carriage 22.
- the printhead carriage 22 is supported for example by a lead screw 24 that is mounted so that its axis is parallel to the axis 15 of the drum 16. Additionally, it is supported by fixed bearings (not shown) which enable it (the carriage 22) to be capable of sidably translating axially.
- a carriage rail 23 provides further support for the carriage 22 as it moves in the direction of arrow 25, that is perpendicular to the moving direction of the sheet 19.
- the printer 10 includes printhead partial width arrays 32 that are each filled or charged with printing ink.
- the printhead partial width arrays 32 comprise a first partial width array printbar 32A, a second partial width array printbar 32B, a third partial width array printbar 32C, and a fourth partial width array printbar 32D.
- Each printbar 32A-32D as shown includes at least a printhead 34, or as preferred here, two printheads, a first printhead 34 and a second printhead 36 that are butted together to form such printbar.
- Each of the printheads 34 and 36 includes several hundred or more channels and nozzles which in operation can be fired sequentially.
- the partial width arrays 32 when charged or filled with ink, can be moved in the direction of arrow 25 for printing on the sheet.
- the first, second and third partial width array printbars 32A-32C respectively, will each contain ink of one of the colors cyan, magenta or yellow, for color printing.
- the fourth partial width array printbar 32D will contain black ink when necessary, especially when needed for printing graphics.
- the printer 10 may also include a full-width array or pagewidth printbar 40 that is also filled or charged with printing ink.
- the pagewidth printbar 40 is supported by an appropriate support structure (not shown) above the drum 16 for printing on the recording medium when filled or charged with printing ink.
- the pagewidth printbar 40 has a length sufficient to print across the entire width (or length) of the recording medium during a single pass of the recording medium beneath the printbar.
- the printbar 40 as shown includes a plurality of printhead units 42 that are affixed to a supporting member (not shown) in an abutted fashion. Alternatively, individual printhead units 42 may be spaced from one another by a distance approximately equal to the length of a single printhead subunit and bonded to opposing surfaces of the supporting member.
- each printhead unit 34, 36 and 42 contains liquid droplet ejecting orifices or nozzles which can in operation, eject ink droplets along a trajectory 45 (FIG. 1), which is substantially perpendicular to the surface of a recording medium.
- each printhead contains heating elements and printed wiring boards (not shown).
- the printed wiring boards contain circuitry required to interface and cause the individual heating elements in the printhead units to eject liquid (e.g. ink) droplets from the nozzles. While not shown, the printed wiring boards are connected to individual contacts contained on the printhead units via a commonly known wire bonding technique.
- the data required to drive the individual heating elements is supplied from an external system by a standard printer interface, modified and/or buffered by a printer micro processor (not shown) within the printer.
- the printer or printing apparatus 10 preferably includes a maintenance system 50 located at one end of the drum 16 for preventing the nozzles in particular from drying out during idle periods following the printhead being filled with ink as above.
- the maintenance system 50 includes assemblies which provide wet wiping of the nozzles of the printheads 32 and 34 as well as vacuuming of the same printheads for maintenance thereof.
- Wet wipers and vacuuming of nozzles typically include a fluid applicator and vacuum means that are located within a stationary drum housing 52 and extend through a plurality of apertures 54A, 54B and 54C when necessary to provide maintenance functions.
- the wet wipers apply a fluid to the ink jet nozzles such that any dried ink, viscous plugs or other debris is loosened on the front face of the ink jet printbars.
- a plurality of vacuum nozzles each extending through a plurality of vacuum nozzle apertures 56A-56C vacuum away any of the cleaning fluid as well as any debris loosened thereby.
- the carriage 22 is moved into position above another plurality of apertures 58A-58D.
- a plurality of capping members disposed within the housing 50 are moved into contact with the front faces of the printbars 32 and 34 through the apertures 58A-58D to thereby cap nozzles of the printheads in order to substantially prevent any ink which has been collected in the nozzles of the printheads from drying out.
- the efficient substrate heating and supporting assembly 60 of the present invention includes a heating device 62 that radiates heat, and a sheet or substrate supporting member or platen shown in the form of a drum, such as the drum 16, that is a hollow aluminum drum having a wall thickness of about 1/8 of an inch.
- the sheet or substrate supporting member 16 can be a flat platen.
- the substrate supporting member 16 has a back or inner surface 64 that is located adjacent to, and facing the heating device 62.
- the substrate supporting member 16 also has a front surface 66 for supporting, one at a time, substrates or sheets 19 (FIG. 1) of various sizes, for example 8.5" ⁇ 11" letter size sheets, and 8.5" ⁇ 14" legal size sheets.
- the front surface 66 is made large enough to handle both 8.5" ⁇ 11" and 8.5" ⁇ 14" size sheets and still leave border areas, and thus is about 9" ⁇ 15" in total front surface area.
- the front surface 66 includes border areas 68 that have a polished finish for minimizing heat emissivity therefrom, and a smooth surface first substrate supporting area 70 for supporting 8.5" ⁇ 11" letter size substrates. It also includes a smooth surface second substrate supporting area 72, for supporting, for example, 8.5" ⁇ 14" legal size substrates.
- the second substrate supporting area 72 includes the first substrate supporting area 70, and an intermediate support area 74 that is located between the first substrate supporting area 70 and the border areas 68.
- the back surface 64 of the substrate supporting member 16 importantly includes an increased heat absorbing area 76, (indicated alternatively as 76'L in FIG. 3) for increasing absorption of heat thereinto from the heating device 62, relative to other areas 78 of the rest of the back surface 64.
- the increased heat absorbing area 76, (or 76'L) is preferably roughened and thus has a surface roughness that is greater than that of the rest 78 of the back surface 64, for further increasing heat absorptivity into such area.
- the increased heat absorbing area 76, or 76'L includes a heat absorbing treatment or coating such as a coating of heat absorbing paint 80, preferably a flat (as opposed to glossy) black paint.
- the heat absorbing (inner) surface 64 of the drum 16 is locally modified in the area 76, or 76'L by an increased heat absorbing coating of paint or of other means, and by roughening.
- Such modifications advantageously induce nonuniform heat absorption into the back surface 64 in a manner to advantageously match nonuniform heat removal by substrates from the front surface 66, as discussed above.
- this advantageously results in relatively more uniform, adequate and efficient substrate heating and drying temperatures on the drum front surface, as shown by curve 320 FIG. 3, when continuously running the most often used substrate size, 8.5" ⁇ 11".
- the front surface 66 preferably should be as smooth as possible in order to maximize the surface contact area between such front surface and a sheet being supported thereon, and in order to shorten the heat path from the drum surface to the such sheet.
- the increased heat absorbing area (shown as 76) preferably is made substantially equal to, or to correspond in size to the first substrate supporting area 70 of the front surface 66.
- the increased heat absorbing area (shown as 76'L in FIG. 3) preferably has an area that is significantly less in size than that of the first substrate supporting area 70 of the front surface 66.
- the advantage from doing so will be to achieve nearly uniform temperatures from end to end for the letter size substrates supporting area 70.
- the emissivity or absorptivity of the heat receiving (inner) surface 64 of the drum is locally modified by paint or other treatment, thereby achieving a relatively nonuniform heat absorption into the back surface, but a relatively uniform and efficient surface temperature distribution for the most often used sheet size, which is letter size.
- letter size (i.e. 8.5" ⁇ 11") sheets or substrates 19, are fed and held onto the outer or front surface 66 of the drum 16, so that the sheet is aligned over, and centered on the first substrate supporting area 70.
- heat is radiated uniformly by the heating device 62, but is advantageously absorbed nonuniformly into the walls of the inner surface 64 in accordance with the present invention. Specifically, a significantly greater amount of such heat is absorbed into the roughened and black painted or coated area 76, or 76'L, than elsewhere on such surface 64.
- the area 76, or 76'L is preferably less than or equal to, and opposite the first substrate supporting area 70 of the front surface 66, a correspondingly significantly greater amount of such heat will be conducted through the drum wall thickness to area 70 of the front surface 66, assuming equal and uniform conduction through the drum wall thickness.
- a given throughput rate is usually measured and expressed in terms of imprints per minute, substrate size, area coverage, and possibly in terms of other variables.
- the printer ordinarily is expected to maintain or support such a throughput rate for long periods of time, or indefinitely.
- a properly or well designed printer of the type including a substrate heating and supporting assembly such as the member 16 an operating steady state is reached when all heat delivered to the back surface, e.g. 64, of the member 16, is removed and substantially all carried away from the front surface thereof by the substrates being run and in contact with the front surface. Relatively minor radiative and conductive losses are expected, and such losses of course can be minimized by careful design.
- the heat is expected to, and usually is delivered uniformly to the inner or back surface 64, of the drum member 16.
- the most commonly and frequently run substrate is the 8.5" ⁇ 11" letter size and the sheet supporting front surface 66 is larger than 8.5" ⁇ 11", (in order to also support 8.5" ⁇ 14" substrates)
- heat removal from the front surface will be greater in the 8.5" ⁇ 11" area and less elsewhere, and thus will be non-uniform. This is because, heat typically is removed by substrates only from the area of the drum front surface in contact with such substrates, e.g. the 8.5" ⁇ 11" area.
- FIG. 3 there is shown a graphical illustration of a generally uniform surface temperature distribution, curve 320, when running 8.5" ⁇ 11" substrates on a drum modified in accordance with the present invention. Also illustrated is a superimposed, comparative and undesirably nonuniform surface temperature distribution curve 310, obtained under similar conditions but on an unmodified conventional drum while also running 8.5" ⁇ 11" sheets.
- the power level used for the calculations was adjusted in order to achieve a temperature of at least 125° C. on all areas (end to end) of the 11" sheet supporting area 70 (FIG. 2) of the drum. It was determined that for the modified drum case according to the present invention, this required a power level of about 764 watts.
- the horizontal axis of the graph represents the 15" length of the drum, with substrate registration at a near end shown having an unpainted margin E1.
- the painted or modified portion has a length shown as 76L that is preferably 10.5" from the near end margin E1.
- the margin E1 measured circumferentially preferably is about a quarter of an inch.
- the length 76L of the modified portion is centered relative to the surface substrate supporting area 70 (FIG. 2), therefore leaving an opposite margin E2 also of about a quarter inch at the distal and opposite end of the drum surface from E1. As shown, this would amount to an unpainted or unmodified portion having a total length, shown as 315 towards the distal end, with an unpainted, unused portion having a length 316.
- the unused portion is of course that portion of the drum surface not being contacted by the 8.5" ⁇ 11" substrates or sheets being run.
- the superimposed conventional temperature curve 310 indicates temperatures that are lower in the sheet or substrate supporting area under the continually fed sheets (8.5" ⁇ 11"), that is, the area 70 (FIG. 2).
- surface temperatures are generally nonuniform in an end to end direction of sheet support on the drum 16 (FIG. 2), and are generally higher towards the near and distal ends than at the middle or center 312 of the sheet supporting area.
- a minimum temperature according to this curve occurs in the middle or center 312 of the sheet supporting area, and a maximum temperature occurs at the center 314 of the unused portion 316.
- Calculations for the curve 310 assumed uniform heat absorption into all areas of the conventional inner surface 64 of the drum, and took into account heat removed by the substrates or sheets, as well as, convective heat loss to the environment.
- the power level used for the calculations was adjusted in order to achieve a temperature of at least 125° C. on all areas (end to end) of the 11" sheet supporting area of the drum, particularly in the center portion 312 thereof, thus resulting in much higher temperatures of more than 155° C. towards the ends, as shown. It was determined that for the unmodified drum case, this required a relatively higher power level of about 820 watts. This is an undesirable situation.
- the higher temperatures of more than 155° C. towards the near and distal ends of the sheet supporting area, as well as, the much higher temperatures shown in the unused or non-substrate supporting area 316 disadvantageously result in an undesirable power loss to the environment.
- the higher temperatures of more than 155° C towards the near and distal end of the sheet supporting area (which are more than 30° C. hotter than the desired temperature in the center 312 of the sheet supporting area) will tend to have an adverse effect on the appearance of the sheets in contact with those ends.
- such a significant difference of more than 30° C. in temperature between portions of the drum surface will tend to cause the drum wall to deform, and thus may make the drum less effective in supporting and heating substrates.
- the temperature curve 320 on a drum modified in accordance with the present invention indicates surface temperatures that under similar circumstances as, but at less power than, the conventional drum, are comparatively lower, and significantly more uniform than those shown by curve 310.
- surface temperatures are about the same level at the middle or center 312, and are particularly lower comparatively towards the near and distal ends of the sheet supporting area. Temperatures as expected, are higher in the unused portion 316 of the drum, than elsewhere along the curve.
- the power level required for maintaining the required minimum temperature of at least 125° C. can advantageously be reduced below the conventional level of 820 watts, or for the conventional level of 820 watts, the printer throughput rate can be increased without a loss in image quality.
- FIG. 4 there is shown a graphical illustration of a generally nonuniform and undesirable surface temperature distribution, curve 420, when running 8.5" ⁇ 14" substrates on a drum modified in accordance with the present invention for efficient running of 8.5" ⁇ 11' sheets. Also shown is a superimposed, comparatively more uniform surface temperature distribution curve 410, obtained under similar conditions but on an unmodified conventional drum when running 8.5" ⁇ 14" sheets.
- the horizontal axis of the graph represents the 15" length of the drum, with substrate registration at the near end shown having an unpainted margin E1.
- the painted or modified portion has the length shown as 76L that as above, and is preferably 10.5" from the near end margin E1.
- the margin E1 measured circumferentially preferably is about a quarter of an inch.
- the length 76L of the modified portion is centered relative to the surface substrate supporting area 70 (FIG. 2). That therefore leaves an unpainted or unmodified portion 417 within the second substrate supporting area 72 (FIG. 2) shown having a length 72L. There is then left an untreated or unpainted and unused portion 416 towards the distal end, that is, the fifteen inch end of the drum.
- the unused portion 416 is of course that portion of the drum surface not being contacted by the 8.5" ⁇ 14" substrates or sheets being run.
- Model computations carried out for providing quantitative support for this invention assumed that the image bearing substrates or sheets remove heat from the drum surface at a rate of 0.9 watts/cm 2 for steady state operations if the temperature of the surface was 125° C. It was also assumed that proportionally lower power densities occurred in those areas heated to less than 125° C., and more in those areas heated to greater than 125° C. As pointed out above, convective heat loss from the surface of the drum was taken into account. Further, it was assumed that the painted portion of the drum's inner surface absorbs power at a rate which is about four times that of the unpainted portion of such surface, and that when unpainted, the entire inner surface absorbs heat uniformly.
- the curve 320 shows the temperature distribution under the above assumptions for steady-state running of 8.5" ⁇ 11" sheets on a modified drum having a painted portion of 10.5" in length measured end to end, and requiring an input power level of 764 watts.
- the 764 watts is a significantly lower power level than the 820 watts for the conventional case.
- the uniformity of the temperatures in the modified drum case, with the 10.5" painted portion is quite obviously improved when compared to the unpainted, conventional case as shown by the nonuniform curve 310.
- the curve 410 of FIG. 4 illustrates the temperature distribution that would result in a conventional drum as described above, for the same power of 764 watts input.
- the temperature uniformity is significantly improved relative to the curve 420, however the minimum temperature is still below the 125° C. value which, as above, is required for proper image drying in the allotted time. Therefore, unless more power is available for the image drying function, the page throughput rate would need to be decreased. Decreasing the page throughput rate has a doubly-beneficial effect since a longer paper residence time allows drying to occur at a lower temperature, and the rate at which heat is removed by the sheet is reduced.
- the absorptivity of the inner drum surface can be controlled in a more distributed way.
- a smaller or larger portion of the inner surface of the drum can have its absorptivity increased for nonuniform heat absorption, thus resulting in a more uniform surface temperatures distribution when running the most often-run size of sheets.
- rarely run size sheets should be run at a reduced throughput rate.
- thinner wall drums thus reducing the warm up and cool down times for such a drum.
- Such a thinner wall drum will be particularly useful when clearing jams, and for running transparency substrates.
- the absorptivity of the inner surface can be increased further by roughening the portion or area 76 (FIG. 2), 76'L (FIG. 3) of the inner surface. Furthermore, it is understood that a nonuniform heat absorption by the inner surface can be obtained by other surface treatments or by thermal radiation shielding, and still be within the spirit of the present invention.
- a thermal ink jet printer including a frame, a printhead mounted to the frame for printing ink images onto a heated and supported substrate, and an efficient substrate heating and supporting assembly mounted to the frame.
- the efficient substrate heating and supporting assembly includes a heating device, and a substrate supporting member having a front surface including a substrate supporting area for supporting substrates of various sizes one at a time.
- the efficient substrate heating and supporting assembly also includes a heat absorbing back surface facing the heating device.
- the heat absorbing back surface includes an increased heat absorbing area located opposite the substrate supporting area on the front surface.
- the increased heat absorbing area relative to a rest of the back surface, has a coat of paint thereon for increasing heat absorption thereinto from the heating device, thereby resulting advantageously in relatively nonuniform heat absorption into the back surface, and relatively more uniform, adequate and efficient substrate heating and drying temperatures on the front surface, when continuously running a most often used size of substrates.
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Abstract
Description
Claims (10)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US09/032,922 US6076921A (en) | 1998-03-02 | 1998-03-02 | Ink jet printer having an efficient substrate heating and supporting assembly |
JP11040944A JPH11277722A (en) | 1998-03-02 | 1999-02-19 | Ink jet printer |
Applications Claiming Priority (1)
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US09/032,922 US6076921A (en) | 1998-03-02 | 1998-03-02 | Ink jet printer having an efficient substrate heating and supporting assembly |
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US6076921A true US6076921A (en) | 2000-06-20 |
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US09/032,922 Expired - Lifetime US6076921A (en) | 1998-03-02 | 1998-03-02 | Ink jet printer having an efficient substrate heating and supporting assembly |
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JP (1) | JPH11277722A (en) |
Cited By (8)
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US6276793B1 (en) * | 1998-11-02 | 2001-08-21 | Xerox Corporation | Ink jet printer having a wear resistant and efficient substrate heating and supporting assembly |
US6283590B1 (en) * | 1999-10-04 | 2001-09-04 | Xerox Corporation | Liquid ink printer including a non-scorching dryer assembly |
US20040090511A1 (en) * | 1998-12-16 | 2004-05-13 | Kia Silverbrook | Printing system with compact print engine |
US10350912B1 (en) | 2018-03-23 | 2019-07-16 | Xerox Corporation | Printer and dryer for drying images on coated substrates in aqueous ink printers |
US10427421B1 (en) | 2018-03-23 | 2019-10-01 | Xerox Corporation | Printer and dryer for drying images on coated substrates in aqueous ink printers |
US10500872B2 (en) | 2018-03-23 | 2019-12-10 | Xerox Corporation | Printer and dryer for drying images on coated substrates in aqueous ink printers |
US10780716B1 (en) | 2019-05-08 | 2020-09-22 | Xerox Corporation | System and device for attenuating curl in substrates printed by inkjet printers |
US10787002B1 (en) | 2019-05-08 | 2020-09-29 | Xerox Corporation | System and device for attenuating curl in substrates printed by inkjet printers |
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Publication number | Priority date | Publication date | Assignee | Title |
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JP2003072059A (en) * | 2001-06-21 | 2003-03-12 | Ricoh Co Ltd | Inkjet recorder and duplicator |
JP2003182113A (en) * | 2001-10-12 | 2003-07-03 | Ricoh Co Ltd | Color ink jet recorder and copy machine |
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JPH02151444A (en) * | 1988-12-02 | 1990-06-11 | Canon Inc | Ink jet recording apparatus |
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1998
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1999
- 1999-02-19 JP JP11040944A patent/JPH11277722A/en not_active Withdrawn
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US5500658A (en) * | 1987-09-11 | 1996-03-19 | Canon Kabushiki Kaisha | Ink jet recording apparatus having a heating member and means for reducing moisture near an ink discharge port of a recording head |
JPH02151444A (en) * | 1988-12-02 | 1990-06-11 | Canon Inc | Ink jet recording apparatus |
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Cited By (17)
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US6276793B1 (en) * | 1998-11-02 | 2001-08-21 | Xerox Corporation | Ink jet printer having a wear resistant and efficient substrate heating and supporting assembly |
US20080111848A1 (en) * | 1998-12-16 | 2008-05-15 | Silverbrook Research Pty Ltd | Print engine with a transfer roller for a recess-mountable pagewidth printer |
US7328966B2 (en) | 1998-12-16 | 2008-02-12 | Silverbrook Research Pty Ltd | Page-width inkjet printer with printhead-transfer roller arrangement |
US6899420B2 (en) * | 1998-12-16 | 2005-05-31 | Silverbrook Research Pty Ltd | Printing system with compact print engine |
US20050151779A1 (en) * | 1998-12-16 | 2005-07-14 | Kia Silverbrook | Printhead-transfer roller arrangement |
US7845789B2 (en) | 1998-12-16 | 2010-12-07 | Silverbrook Research Pty Ltd | Print engine with a transfer roller for a recess-mountable pagewidth printer |
US7055947B2 (en) | 1998-12-16 | 2006-06-06 | Silverbrook Research Pty Ltd | Printhead-transfer roller arrangement |
US20040090511A1 (en) * | 1998-12-16 | 2004-05-13 | Kia Silverbrook | Printing system with compact print engine |
US20060055758A1 (en) * | 1998-12-16 | 2006-03-16 | Silverbrook Research Pty Ltd | Page-width inkjet printer with printhead-transfer roller arrangement |
US6283590B1 (en) * | 1999-10-04 | 2001-09-04 | Xerox Corporation | Liquid ink printer including a non-scorching dryer assembly |
US10350912B1 (en) | 2018-03-23 | 2019-07-16 | Xerox Corporation | Printer and dryer for drying images on coated substrates in aqueous ink printers |
US10427421B1 (en) | 2018-03-23 | 2019-10-01 | Xerox Corporation | Printer and dryer for drying images on coated substrates in aqueous ink printers |
US10500872B2 (en) | 2018-03-23 | 2019-12-10 | Xerox Corporation | Printer and dryer for drying images on coated substrates in aqueous ink printers |
US11007797B2 (en) | 2018-03-23 | 2021-05-18 | Xerox Corporation | Dryer for drying images on coated substrates in aqueous ink printers |
US10780716B1 (en) | 2019-05-08 | 2020-09-22 | Xerox Corporation | System and device for attenuating curl in substrates printed by inkjet printers |
US10787002B1 (en) | 2019-05-08 | 2020-09-29 | Xerox Corporation | System and device for attenuating curl in substrates printed by inkjet printers |
CN111907230A (en) * | 2019-05-08 | 2020-11-10 | 施乐公司 | System and apparatus for mitigating curl in substrates printed by inkjet printers |
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